21011115

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{29803}}^1$

素因数の和:29858

約数の個数: 16

約数和(自身を含む): 34334208

約数和(自身を除く): 13323093

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 29803, 89409, 149015, 447045, 1400741, 4202223, 7003705, 21011115]

約数ペア:

[(1, 21011115), (3, 7003705), (5, 4202223), (15, 1400741), (47, 447045), (141, 149015), (235, 89409), (705, 29803)]